Lubricating device



C. G. CUNNINGHAM.

- LUBRICATING DEVICE.

APPLICATION FILED MAR. 29, 1917.

UNITED STATES PATENT OFFICE.

CHARLES G. CUNNINGHAM, OF NEW YORK, N. Y., ASSIGNOR TO ELEVATOR SUPPLIES 00., INC., A CORPORATION OF NEW JERSEY.

LUBRICATING DEVICE.

Application filed. March 29, 1917.

V T all whom it may concern:

Beit known that I, CHARLES Gr. CUNNING- HAM, a citizen of the United States, residing in New York, in the county and State of New York, have made a certain new and useful invention in'Lubricating Devices, of which manufacture.

Further objects of the invention will appear more fully hereinafter. 7

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawing and finally pointed out in the appended claims.

Referring to the drawing:

Figure 1 is a view in side elevation of the lubricating device applied 'to the moving body, showing it in assembled relation, relative to the guide.

Fig. 2 is a view in perspective of the same.

Fig. 3 is a sectional view taken on the line 3-3, Fig. 2, and looking in the direction of the arrows.

Fig. 4 is'asectional view taken on the line 4-4, Fig; 3 and looking in the direction of the arrows. V

, Fig. 5 is a sectional'view, taken on the line 55, Fig. 3, and looking in the direction of the arrows The same part is designated by the same reference numeral wherever it occurs throughout the several views.

7 In my Patent No. 1,181,438, issued to me May 2, 1916, I show and describe a lubricating device which is mounted on a moving body, such as an elevator, and is operated by the swaying movement of the moving body relative to a fixed guide to pump a lubricant contained therein to the surface of the guide. It is to structural features of a lubricating device of this nature, which has various ad- Specification of Letters Patent.

Patented Aug. 9, 1921.

Serial No. 158,213.

vantages over the structure shown and described in my patent above identified, that the present application is directed.

In the drawing I show the fixed guide at 1 along which operates the moving body, such as the elevator, or counter weight thereof indicateo at 2, and upon which is mounted the lubricating device indicated generally at 3, to be operated by the swaying movement of the moving body 2, relative to the fixed body or guide 1, to supply the guide with a lubricant to facilitate the movement of the moving body therealong. The lubricating device 3 may be secured to the moving body in any desired manner. I show a simple arrangement wherein a bracket indicated at 4: is secured to the moving body, to which bracket the lubricating device 5 is suitably secured, for example by bolts 6.

In its essential characteristics the lubrieating device consists of the tank 3, having a chamber 7 to contain the oil or other lubri cant. The tank is formed with a transverse pump chamber 8 at its lower end, in which reciprocates a plunger piston 9 located wholly within the tank. This plunger is firmly but yieldingly pressed outwardly by a spying 10; the pump chamber 8 communicates with the oil chamber 7 through an opening 11 which if desired may be controlled by a valve, such as the ball valve shown. Through the vertical wall or an enlarged rib portion 12 of the tank 3 is formed a duct or passage 13, which if desired, may be controlled by a valve such as the ball which sits toward the pump chamber. This duct or passage communicates at its lower end with the pump chamber 8 and is interiorly threaded at its upper end to receive a screw plug 15. This screw plug is kerfed inone side thereof as indicated, and preferably at an incline to the longitudinal access of said plug to form a passage 50. At or near its upper end the wall of the duct 13 is provided at diagrammatic opposite points with perforations opening respectively into the oil chamber 7, and to the chamber 16, in which is located suitable packing or oil-absorbing material, such as felt or the like, as indicatedat 17. This chamber in which the felt or packing material is carried is arranged to straddle the guide 1 or other surface to be lubricated, and said chamber is opened at the sides there tion of the lubricating device 3, with the exception that the pump plunger 9 does not extend through the exterior wall thereof, is identical with the structure shown and described in my patent hereinbefore identified. Within the oil chamber 7 of the tank 3 I form lugs 20, preferably cast integral there- H with. These lugs have a central slot therein indicated at-2l, Fig. '3, to receive a pin 22 carried by a lever23. The lever 23 is an angle lever with one arm extending down wardly and bearing against the end of the V plunger 9, the other arm extending upwardly at an angle to the first arm center to allow the first arm to move the plunger 8 toward the chamber 8 against the action of the spring 10 when the upper arm is moved,

the entire angle lever acting about its pivotal support formed by the pin 22 and the slot 21 of the lugs 20.

A suitable cover 25 is provided, which cover may be removed by unscrewing the screws 26 to allow access to the'pad chamber 16. Thecover 25 is provided with a channel'portion 27 in which is mounted to move therein a push rod 28. This push rod may be of any desired shape or material, but I prefer to make the same of the same shape as the channel 27. and'to provide one end thereof with a fiber head 30. The other end of the member bears against the'upper arm of the angle lever 23, as shown ;best in Fig.7 3. r r

*A liftable cover carried by lugs 31 on the exterior of the tank 3 is shown at 33 which cover is'of the same'contour as the cover 25, so that together therewith the entire contents and the internal mechanism of the device is; completely inclosed and therefore '7 dust and dirt proof. Itwill be seen that access to the chamber 7 of the tank is readily secured through the cover 33 so that oil may be readily supplied thereto to allow access to the adjusting screw 15 on the groove or providea slot through the slidable member" 28 as indicated at 40. Thus it will beseen to gain access to the adjusting screw 15 it is merely necessary to lift the hinged cover 33 as will be readily understood.

With this construction of lubricator it will.

be seen'that I provide a lubricating device which when swaying with the moving body relative to its fixed guide, the end of plun-' ger 30 will contact with the guide, thereby operating the lever 23 to operate the pump plunger 9 and force the'oil up to the pad 17, which being 1n contact withthe guide, lubricates the same. However, through the pas surplus oil or lubricant pumpedto' the .pad 7 17 will drain back into the oil chamber 7,

as shown.

It'will be seen therefore, that Ihave provided a lubricating device which is simple in structure, efiicient in operation and in which there are no parts which can get out of adjustment or be inadvertently or other: wise rendered inoperative.

Further, the-use of packing is eliminated as there are no parts extending through the wall of the tank.

Having now set'forth the objects and nature of my invention and having shown and described a structure embodying the principles thereof, whatI claimas new and useful and of my own invention and desire to secure by Letters Patent is:

1. A lubricating device comprising an oil receptacle, anoil distributing mechanism lying wholly within said receptacle, a slidable plunger mounted on the top of the re-' therewith, afplunger operating insaid chamber and lying wholly within said-receptacle,

a spring opposing the operation of said plun= ger in one direction, an angle lever pivotally carried at a point intermediate its ends by the interior wall ofsaid receptacle and bearing at one end against said plunger, and means operated by the swaying movement of the lubricating'device; relativefto said guide for exerting apressure' on the other end of said lever. I 7 p a 3. A lubricating devicecomprising a'single hollow casting to contain-oih a pump chamber formed in the wall ofsaid casting and communicating with the hollow portion of said casting, said casting also being pro vided with a chamber to receive a distributing pad, a duct forme'd in the castingto provide a communication between said padand pump chambers, a plunger located in said pump chamber, a lever pivotally supported in the hollow portion 1 of the casting and bearing at one end again st said plunger, means normally tending to yieldably maintain said plunger in'retra cte'd position in said pump chamber, and means slidably ing said lever. f" I V I In testimony whereof I have hereunto set my7hand on this 26th day of March, A. D. 191

mounted on the top of saidcastingfor rockonxntns dcunninenan. 

